1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sergio [31]
2 years ago
5

Satellite dishes are shaped like parabolas to optimally revive signals. The cross section of a satellite dish can be modeled by

the function y= 1/8(x^2-4) where x and y are measured in feet. The x-axis represents the top of the opening dish.
Write a quadratic function that models the cross section of the satellite dish that is 6 feet wide and 1.5 deep.
Mathematics
1 answer:
Anna11 [10]2 years ago
7 0

The cross section of the satellite dish is an illustration of a quadratic function

The quadratic function that models the cross-section is y = 1/6(x^2 - 9)

<h3>How to determie the equation of the cross-section?</h3>

The given parameters are:

Width = 6 feet

Depth = 1.5 feet

Express the width the sum of two equal numbers

Width = 3 + 3

The above means that, the equation of the cross section passes through the x-axis at:

x = -3 and 3

So, we have:

y = a(x - 3) * (x + 3)

Express as the difference of two squares

y = a(x^2 - 9)

The depth is 1.5.

This is represented as: (x,y) =(0,-1.5)

So, we have:

-1.5 = a(0^2 - 9)

Evaluate the exponent

-1.5 = -9a

Divide both sides by -9

a = 1/6

Substitute 1/6 for a in y = a(x^2 - 9)

y = 1/6(x^2 - 9)

Hence, the quadratic function that models the cross-section is y = 1/6(x^2 - 9)

Read more about quadratic functions at:

brainly.com/question/1497716

You might be interested in
If you started the problem by converting 1 pound to 16 ounces, would you get the same results?
Arturiano [62]

Answer:

yes

Step-by-step explanation:

you would get results bc results are results

4 0
3 years ago
Please help!!!!!!!!!!!!.
kotykmax [81]

Answer:

The answer is D. You divide the shape into 3 rectangles.

Step-by-step explanation:

3 0
3 years ago
How many degrees are in a half of a full turn? another dumb question lol
valentina_108 [34]
160
Is the the answers r I did this before trust me
3 0
3 years ago
Read 2 more answers
B^5 c^8+b^3 c^2 in exponential form
Oksanka [162]
If u man just simplifying it
B^8+c^10 (just add exponents)
3 0
2 years ago
Help please.............
Sergeeva-Olga [200]

Answer:

6

Step-by-step explanation:

$68 per day and you want it to be >400

68x>400 -divide by 68 on both sides

is about 5.88 -round up to six because it wants a whole number and it needs  to be greater then 400

8 0
2 years ago
Other questions:
  • Ab is 10. 8 units long if ABC is dilated by a scale factor of k equals 1.3 what is the length of a'b'
    15·1 answer
  • Help?
    10·1 answer
  • Whats multiplying<br><img src="https://tex.z-dn.net/?f=2%20%5Ctimes%20%20%5Cleqslant%20%20-%20%20%5Cfrac%7B2%20%7D%7B3%7D%284%20
    8·1 answer
  • What is the answer to 3x+5=4
    5·1 answer
  • the dimensions are 1 ft deep by 24 inches wide by 18 inches tall. how many cubic inches of water is that
    15·1 answer
  • sum_(n=0)^infinity (x+8)**n/(3**n) (a) Find the values of x for which the series converges. (Enter the smaller number first.) (
    9·1 answer
  • Multiplication in exponential notation
    9·2 answers
  • I need help on this question. I tried finding the answer through my own thinking and the Internet, but I still couldn't get it.
    15·1 answer
  • Determine if the expression is greater than 1.
    11·1 answer
  • Five times a number gives the same answer as adding 24 to the number.<br> What is the number?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!